1. (of hosiery) resistant to runs or (in Britain) ladders
   - ladder-proof, run-resistant

See also: imperviable, impervious

• achromatic vision
• achromaticity
• achromatin
• achromatinic
• achromatise
• achromatism
• achromatize
• achromatous
• achromia
• achromic
• achromous
• Achromycin
• achy
• achylia
• achylia gastrica
• acicula
• acicular
• aciculate
• acid
• acid anhydrides
• acid dye
• acid halide
• acid head
• acid hydrogen
• acid precipitation